128529204 has 24 divisors (see below), whose sum is σ = 300242880. Its totient is φ = 42794304.

The previous prime is 128529151. The next prime is 128529211. The reversal of 128529204 is 402925821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5817 + ... + 17055.

It is an arithmetic number, because the mean of its divisors is an integer number (12510120).

Almost surely, 2^128529204 is an apocalyptic number.

It is an amenable number.

128529204 is an abundant number, since it is smaller than the sum of its proper divisors (171713676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128529204 is a wasteful number, since it uses less digits than its factorization.

128529204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199 (or 12197 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 128529204 is about 11337.0721087942. The cubic root of 128529204 is about 504.6620017132.

The spelling of 128529204 in words is "one hundred twenty-eight million, five hundred twenty-nine thousand, two hundred four".